<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>w3cNavDemo</title>
    <link rel="stylesheet" href="../../css/w3cNavDemo.css">
</head>
<body>
<!--或者直接用nav和a标签-->
<ul class="nav">
    <li><a href="#">HTML/CSS</a></li>
    <li><a href="#">Browser Side</a></li>
    <li><a href="#">Server Side</a></li>
    <li><a href="#">Programming</a></li>
    <li><a href="#">XML</a></li>
    <li><a href="#">Web Building</a></li>
    <li><a href="#">Reference</a></li>
</ul>
<a href="#" class="top">top</a>
</body>
</html>